CN1576444A

CN1576444A - Drum-type washing machine

Info

Publication number: CN1576444A
Application number: CNA2004100626581A
Authority: CN
Inventors: 朴三济; 金光寿
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2003-07-08
Filing date: 2004-07-08
Publication date: 2005-02-09
Anticipated expiration: 2024-07-08
Also published as: US7451626B2; EP1498536A2; JP2005028145A; PL1498536T3; AU2004203022B2; US7743480B2; US20090064729A1; US20050005652A1; CN100371520C; AU2004203022A1; EP1498536A3; EP1498536B1

Abstract

Disclosed is a drum-type washing machine having a tub provided therein for storing wash water with an improved structure., The tub includes a central tub formed as a hollow cylinder 1 and forming a rotatable drum therein.; A back tub includes a base plate for covering a rear side of the center tub, a first member bent backward from an outline of the base plate, and overlapping an inner surface of the center tub. A second member is bent frontward from the first member , and overlapping on an outer circumferential surface of the central tub.

Description

Tumbling-box washing machine

The application requires the priority of P2003-46028 number of submitting on July 8th, P2003-46027 number 1 of the submission on July 8th, P2003-46021 number 1 of submission on July 8th, 2003 and P2003-59147 number the korean patent application of submitting on August 28th, 2003, and its content is hereby expressly incorporated by reference.

Technical field

The present invention relates to a kind of tumbling-box washing machine, particularly a kind of tumbling-box washing machine with the bucket that improves structure.

Background technology

Normally, the washing of tumbling-box washing machine is to be undertaken by the frictional force between washings and the clothing, and this frictional force is to produce to wash by the driving force that washings and clothing receive motor.This method is very little to the damage of clothing, can prevent that clothing from twining, and can realize with patting and crumple same clean result.

Fig. 1 shows the exterior perspective view of common tumbling-box washing machine, and Fig. 2 shows the sectional view according to the tumbling-box washing machine of prior art.

As shown in Figure 1, the front surface of shell 1 is provided with the opening 1a that can open or close by door 8, rotatably is provided with the cylinder 3 that is used for putting clothing in this opening.The surface of cylinder 3 is provided with can be by a plurality of holes of washings.

As shown in Figure 2, be used for depositing the bucket 2 of washings being provided with in appearance of cylinder 3, bucket 2 is connected with spring 12 with damper 10, so that can be fixed on the shell 1.Be provided with towards the inner recessed door glass 8a of tumbling-box washing machine at the middle part of door 8, between door 8 and bucket 2, be provided with packing ring 7 to prevent the seepage of washings.Rear side at bucket 2 is provided with motor 6 with swing roller 3, can wash by the rotation of cylinder.

Fig. 3 shows the section of structure according to the bear box of the rear side that is installed on bucket of prior art, and Fig. 4 shows the rearview of the rear side of bucket, and Fig. 5 shows the stereogram of the rear side of bucket.

As shown in Figure 3, bear box 4 is arranged on the rear side of bucket 2.Be provided with porosely at the middle part of bear box 4, the rotating shaft 6c of motor 6 promptly passes this hole, and also is provided with bearing, so that the rotation of rotating shaft is level and smooth.

Simultaneously, motor 6 comprises rotor 6a and stator 6b, and stator 6b is fixed on the bear box 4.When to motor 6 supply of electrical energy, rotating shaft 6c together rotates with rotor 6a.Therefore, be connected in cylinder 5 rotations of the end of rotating shaft 6c, and in tumbling-box washing machine, wash.

As shown in Figure 4, bear box 4 comprises a wheel hub 4a and a plurality of tie-beam 4b.A plurality of tie-beam 4b are extending on three directions of 120 ° at interval along the circumference of wheel hub 4a.In this case, at an upper portion thereof, carrying bolt 5 is connected in the end of tie-beam 4b.Carrying bolt 5 is fixed in bucket 2 on the shell 1.Therefore, when conveying drum formula washing machine, can stop bucket 2 to collide shell 1.

For the weight that prevents shell 1 concentrates on the one side by carrying bolt 5, between carrying bolt 5 and shell 1, insert auxiliary member 8.

With reference to Fig. 3, be provided with fixed support 9 at each end of a plurality of tie-beam 4b.First end of support 9 is fixed in a side of bucket 2, and second end of support 9 is connected in the end of tie-beam 4b.

In this case, be provided with the connecting hole of connecting bolt 11 at the end of tie-beam 4b.Therefore, by bolt 11 being passed support 9 and being connected in connecting hole, can make tie-beam 4b be fixed in support 9.

Fig. 5 shows the stereogram according to the bucket of prior art, the schematic diagram of the front side of the assembly structure that Fig. 6 be barrel.

As shown in Figure 5, bucket 2 comprises in one before 21, one in the bucket bucket 23 behind 22 and one in the bucket.In this case, middle bucket 21 is cylindrical, the rear side of bucket 21 during back bucket 23 covers.Cylinder 3 is arranged on the inboard of bucket 2, and opening 2a gives prominence to forward in the bucket 22 in the past.

The circumference of preceding bucket is provided with the bend of " U " shape, and seal is inserted in the bend.The end of curling of middle bucket also is inserted in this bend.

Be provided with the fixture of a plurality of button shapes along the outer circumference surface of middle bucket.This fixture comprises a hook and a bar.Before this hook is suspended on the circumference of bucket and during pull lever, bucket and be fixed on the there during preceding bucket is pulled to.In this case, seal is compressed with bucket before sealing and middle bucket.

Simultaneously, above-mentioned according to prior art be used for tumbling-box washing machine the bucket there are the following problems.

The first, because bear box is fixed on the bucket by three tie-beams, thereby need thickening bucket and bear box preventing the damage of bucket and bear box, and the vibrations that produce in the high speed rotary course and weight will concentrate on barrel and bear box.

The second, concentrate on a side of shell in order to prevent weight by carrying bolt, independent auxiliary member need be set.

The 3rd, for the tie-beam with bear box connects with bucket, need independent support.Because first end of support is welded on a side of bucket, and second end of support is connected in tie-beam, therefore assembles up very inconvenient.

The 4th, being used for preceding bucket is uneven with barrel connection power of the fixture that connects along circumferencial direction.

Therefore the 5th, mount device on the excircle of bucket in being difficult in has reduced the productivity ratio of bucket.

Summary of the invention

Therefore, the present invention relates to a kind of tumbling-box washing machine, it can fully overcome the one or more problems that cause owing to the limitation of prior art and shortcoming.

An object of the present invention is to provide a kind of tumbling-box washing machine, it has improved bear box and bucket, is used for more stably operating this tumbling-box washing machine.

Other advantage, purpose and feature of the present invention partly provides in explanation subsequently, partly can obviously find out from following explanation for those of ordinary skills, maybe can draw from enforcement of the present invention.Purpose of the present invention and other advantage can be understood, obtain from the structure that following written explanation, claim and accompanying drawing provide especially.

For realizing these purposes or other advantage, and it is consistent with purpose of the present invention, as implementing here with broadly described, the invention provides a kind of tumbling-box washing machine, be provided with the bucket that is used to deposit washings in it, wherein bucket comprises bucket in, and middle bucket is the cylindrical of hollow, is used for rotatably being provided with therein cylinder; Bucket after one comprises the base plate that is used for covering the bucket rear side; First bend, crooked backward from the profile of base plate, and overlapping on the inner surface of middle bucket; And second bend,, and overlapping from first bend at the external peripheral surface place of middle bucket to front curve.

In this case, first bend and middle bucket are by being welded to connect, and by the end of curling next crooked second bend with bucket in covering, first bend and second bend are all processed and bending by curling.Overlapping portion at first bend and middle bucket is provided with a through hole.

In this case, tumbling-box washing machine further comprises a bear box, and this bear box comprises a wheel hub that is arranged on the rear side of bucket; And tie-beam, having the connecting hole of connecting bolt, this bolt passes through hole and is inserted into the trailing wheel hub diameter in an end that extends.

Be provided with the spigot surface with the recessed cross section of " V " shape near through hole and connecting hole, the bottom of bolt head is corresponding with the shape of this spigot surface and form.

Second bend extends to predetermined length along first bend and middle part, and is provided with a through hole in the overlapping portion of second bend, first bend and middle bucket.

In this case, tumbling-box washing machine further comprises a bear box, and this bear box comprises a wheel hub that is arranged on the rear side of bucket; And tie-beam, this tie-beam has the connecting hole of connecting bolt, and this bolt passes through hole and is inserted into the trailing wheel hub diameter in an end that extends.

Be provided with the spigot surface with " V " shape concave cross-section near through hole and connecting hole, the bottom of bolt head is corresponding with the shape of this spigot surface and form.

The outer circumference surface of middle bucket is provided with the reinforcement of continuous or discontinuous crooked shape.

Simultaneously, in another aspect of this invention, provide a kind of tumbling-box washing machine, be provided with the bucket that is used to deposit washings in it, wherein this barrel comprises the base plate of a circle; Bucket comprises first bend that is bent to form backward from the profile of this base plate after one; And bucket in a hollow columniform, the rear portion inner peripheral surface of bucket and the outer circumference surface overlaid of first bend in this, and should in bucket also have one by curling processing and the end of bending, this end is used to cover the end of first bend.

In another aspect of this invention, provide a kind of tumbling-box washing machine, this tumbling-box washing machine comprises bucket, and this barrel comprises the columniform middle bucket of a hollow again, is used for rotatably being provided with cylinder within it; And bucket after, comprise a bend that is used for covering the bucket rear end; And a bear box, comprise that the wheel hub at the rear portion that is arranged on bucket and four trailing wheel hub diameters are to the tie-beam that extends and be fixed in the rear side of bucket.

In this case, the end of tie-beam is connected in bend by using bolt.Two tie-beams are fixed on the bucket symmetrically.Carrying bolt is connected with the tie-beam on the top that is fixed to bucket.

Angle between the tie-beam is identical.When the bottom of bucket when being oval, the angle between two tie-beams is then inequality.Except that the space that tie-beam is set, locate to be provided with respectively a plurality of first reinforcements at 4 on the rear surface of bucket.

The rear surface of bucket is provided with a plurality of second reinforcements that press down towards the place ahead of bucket, is used for carrying bucket and tie-beam.

Simultaneously, in another aspect of this invention, the manufacture method of tumbling-box washing machine comprises the step that forms circular middle bucket; Form the step of back bucket, this back bucket comprises that the profile to oval base plate curls and processes and first bend of formation; Insert the step of back bucket, with the rear side inner circumferential surface of middle bucket with the first bend overlaid; With the step of middle bucket with the seam welding of a side of first bend; And the step that forms second bend, be used for covering the end of bucket by first bend that curls.

In this case, be shaped as columniform middle bucket and form for cylindrical, and abutment joint carries out butt welding by a sheet metal is curled.The method of making tumbling-box washing machine further comprises the step of the reinforcement that forms crooked shape, is installed in the inner roller of middle bucket and forms reinforcement on its outer circumference surface by extruding.

In another aspect of this invention, a kind of tumbling-box washing machine is provided, comprise bucket in a hollow columniform, and one be arranged in the anterior preceding bucket of bucket, this washing machine comprises in the past bucket and middle barrel of bandy the 3rd bend in position respect to one another and the 4th bend; Be arranged on the seal between the 3rd bend and the 4th bend; And the clamping device that is provided with along the outer circumference surface of the 3rd bend and the 4th bend.

In this case, clamping device is the bend pipe that covering the 3rd bend and the 4th bend are used for squeeze sealing member.This bend pipe is shorter than the length of the excircle of bend, and it is the annular that a side disconnects.

Be provided with clamping device at gap, be used for bend pipe is applied clamping force at circumferencial direction.Clamping device comprises a plurality of fixed heads, and is outstanding perpendicular to circumferencial direction in first side and second side of the disconnection portion of bend pipe; The bolt that is connected with through hole that on fixed head, forms; And, be used for bend pipe is applied power to clamp bend pipe with bolted nut.

The cross section of bend pipe is a flute profile.The cross section of bend pipe is " U " shape.The cross sectional shape of seal is "T"-shaped.One end of the 3rd bend is to front curve, and an end of the 4th bend curls backward.

The 3rd bend and end the 4th bend are all to front curve.In this case, be provided with the seal of " U " shape, and be provided with side extension that extend and that contact the 4th bend from seal along the 3rd bend.

In another aspect of this invention, a kind of tumbling-box washing machine is provided, and comprising sets within it is used to deposit the bucket of washings, and wherein this bucket comprises bucket in, should in bucket have at its anterior bandy the 3rd bend, middle bucket be shaped as the cylindrical of hollow; Bucket after one, comprise the base plate that is used for covering the bucket rear side, from recurvate first bend of the profile of base plate, and overlapping with the inner peripheral surface place of the rear side of middle bucket, and it is from prone second bend of first bend, and overlapping with the outer circumference surface of middle bucket; Bucket before one has crooked and the 4th bend of the 3rd relative bend, and is arranged on the front portion of middle bucket; Be arranged on the seal between the 3rd bend and the 4th bend; The clamping device that is provided with along the outer circumference surface of the 3rd bend and the 4th bend.

Be appreciated that above-mentioned explanation of the present invention and the following detailed description all are illustrative and exemplary, its objective is the invention provides further instruction.

Description of drawings

The accompanying drawing that is provided can provide further understanding of the invention, and the part of book as an illustration in being included in, and it shows embodiments of the invention, and and specification be used for explaining principle of the present invention together.Wherein:

Fig. 1 shows the stereogram of common tumbling-box washing machine;

Fig. 2 shows the sectional view according to the tumbling-box washing machine of prior art;

Fig. 3 shows the sectional view according to the structure of the bear box of prior art;

Fig. 4 shows the rearview according to the tumbling-box washing machine of prior art;

Fig. 5 shows the stereogram according to the bucket of prior art;

Fig. 6 shows the stereogram according to the fixture of prior art;

Fig. 7 shows the stereogram according to the mounting structure of bear box of the present invention;

Fig. 8 shows the rearview according to tumbling-box washing machine of the present invention;

Fig. 9 shows the rear elevational sectional view according to bucket of the present invention;

Figure 10 shows the flow chart according to the manufacture method of bucket of the present invention;

Figure 11 a and 11b show the sectional view according to the syndeton of bucket of the present invention and bear box;

Figure 12 shows the stereogram according to bucket of the present invention; And

Figure 13 and 14 shows the sectional view according to the syndeton of bucket before of the present invention and middle bucket.

The specific embodiment

Referring now to embodiment shown in the drawings to a preferred embodiment of the present invention will be described in detail.In the place that may occur, in the description of embodiment, identical parts are represented with identical reference marker.

Hereinafter, to Figure 14, describe tumbling-box washing machine with reference to Fig. 7 in detail according to various embodiments of the present invention.

Fig. 7 shows the stereogram according to the mounting structure of bear box of the present invention, and Fig. 8 shows the rearview according to tumbling-box washing machine of the present invention.

As shown in Figure 7, bear box is arranged on the rear side according to bucket 102 of the present invention.In this case, columniform wheel hub 104a is arranged on the middle part of bear box 104, and four tie-beam 104b are provided with predetermined interval along the circumference of wheel hub 104a.The end of tie-beam 104b is fixed on the rear side of bucket 102 by bolt connection piece.

In this case, because the weight of carrying is disperseed by four points on bucket 102, thereby bear box 104 can be fixed in bucket 102 with being stabilized when cylinder 103 rotates at a high speed.Because tie-beam 104b goes up the weight of carrying and also scatter, thereby can prevent that bucket 102 and bear box 104 from damaging.

As shown in Figure 8, need be set to about its vertical plane symmetrical by tie-beam 104b.In this case, connecting hole is set in place on two tie-beams of portion thereon, and carrying bolt 105 is connected in this connecting hole.

In this case, because the weight of carrying bolt 105 carryings is dispersed to two positions, thereby can prevent shell 1 bending.Therefore, independent auxiliary member need be set at the bolt connection piece place.

As shown in Figure 7, in order to augment the rear side intensity of bucket 102, four positions in the space between tie-beam 104b are provided with the first back side-prominent reinforcement 202a towards bucket 102.This first reinforcement 202a is back side-prominent towards bucket 102 by extrusion process.

In this case, cylinder 103 capacity that can put into clothing have increased, and the capacity that is used to deposit the bucket 102 of washings has reduced.Therefore, increased owing to have the capacity of the bucket of the first reinforcement 202a, so washings and required excess power have also reduced simultaneously.

The second reinforcement 202b of carrying wheel hub 104a and tie-beam 104b is arranged between the first reinforcement 202a.Augmented the intensity of bucket 102 rear sides towards the second anterior recessed reinforcement 202b of bucket 102, and the space that is used to carry wheel hub 104a and tie-beam 104b is provided.

Along the outer circumference surface of bucket, be provided with the 3rd reinforcement 202c by extrusion process.The 3rd reinforcement 202c need be arranged at least two positions of axial each interval.

Simultaneously, the back side lower part of bucket 102 can be arranged to oval to form the installing space of heater.In this case, heater can be set, in bucket 102, carry out the heat washing to be used for heated scrub water.

When the back side lower part of bucket 102 forms ellipse, need to go up angle α between the tie-beam be set to following tie-beam between angle β different.In this case because the area of bucket 102 bottom is greater than the area on its top, the angle β between the following tie-beam greater than the angle α between the last tie-beam.In this case, carrying bolt be connected thereto two is gone up the position that tie-beam 104b are arranged on symmetry.Because ellipse is formed at the bottom of the first reinforcement 202a, therefore going up reinforcement is different on area with following reinforcement.

Fig. 9 shows the back sectional view according to bucket of the present invention, and Figure 10 shows the flow chart according to the processing method of bucket of the present invention.As shown in Figure 9, bucket 102 comprises a columniform middle bucket 102a; And the back bucket 102b of bucket 102a rear side in covering.This back bucket 102b comprises a base plate 200b, first a bend 210b and one second bend 220b.

The first bend 210b be bucket 102 from the recurvate part of the profile of base plate 200b, and the second bend 220b is that bucket 102 is from the prone part of the first bend 210b.The rear end of middle bucket 102a is between the first bend 210b and the second bend 220b.In this case, the contact site of back bucket 102b and middle bucket 102a is connected by the seam welding.

With reference to Figure 10, the manufacture method according to bucket of the present invention will be described below.

The first, the thin slice that curling metal material is made, and solder joint is with bucket 102a in forming.Processing forms the first bend 210b at the profile place of circular bottom plate 200b by curling.Then, insert along the external peripheral surface of the first bend 210b in the rear end of bucket 102a.

Back bucket 102b and middle bucket 102a overlapping is connected by the seam welding.In more detail, need weld at the seam crossing of the first bend 210b and middle bucket 102a.

In this case, the thickness of the connecting portion of the end of middle bucket 102a and bend 210b and 220b is than the big twice of thickness of other parts.

End by the crooked first bend 210b of processing that curls forms the second bend 220b.In this case, the rear end of the point of middle bucket 102a can be covered by the second bend 220b, thereby can prevent to scratch the workman in transportation or operating process.

Because the formation of the second bend 220b, the thickness of connecting portion is three times of other segment thicknesses, has therefore increased its intensity.So connecting portion has enough intensity to come spring bearing housing 104.

Opposite with foregoing description, middle bucket 102a can process and bending twice by curling, and the end of back bucket 102b is covered by the bend of middle bucket 102a.

Figure 11 a show according to a preferred embodiment of the invention bucket and the sectional view of the syndeton of bear box, Figure 11 b shows the sectional view of syndeton according to another preferred embodiment of the invention.

Shown in Figure 11 a, according to the first embodiment of the present invention, middle bucket 102a and the equitant part of the first bend 210b are provided with a through hole.According to first preferred embodiment, the lap place of the bucket 102a and the first bend 210b during through hole is arranged on.On the corresponding position, end of the tie-beam 104b of this through hole setting and bear box 104, be formed with the recessed spigot surface 220 of " V " shape at the contiguous place of through hole by extrusion process.

Therefore, because the contact area between the bottom of the spigot surface 220 of " V " shape and bolt 107 heads increased, thereby can prevent because the vibrations of motor and cylinder generation get loose bolt 107.

The end of the second bend 220b that is processed to form by curling bucket 102a in the first bend 210b place covers.In this case, the formed second bend 220b is very short, therefore can avoid contacting the through hole of connecting bolt 107.

Simultaneously, according to bear box 104 another embodiment with the syndeton of bucket 102, the second bend 220b also may extend into long enough and goes up the connecting hole that forms to cover tie-beam 104b, and the through hole that bolt 197 passes promptly is arranged on this extension.

Shown in Figure 11 b, be processed to form the profile of back bucket 102b by secondary coil at the first bend 210b and the second bend 220b place.The rear end of middle bucket 102a is between the first bend 210b and the second bend 220b.

The through hole that passes the second bend 220b, middle bucket 102a and the first bend 210b is three times of other segment thicknesses.Be provided with the recessed spigot surface 220 of " V " shape near through hole, bolt 107 passes through hole and is connected in the last connecting hole that forms of tie-beam 104b.Therefore, bear box 104 can more stably be fixed in the rear portion of bucket 102.Because the end of middle bucket 102a is covered by the second bend 220b, the processing safety when therefore having improved assembling.

Simultaneously, structure according to the front side of bucket of the present invention below will be described.

Figure 12 shows the stereogram according to bucket of the present invention.Figure 13 show according to a first advantageous embodiment of the invention middle bucket and the sectional view of the syndeton of preceding bucket, and 14 show according to a second, preferred embodiment of the present invention before the sectional view of syndeton of bucket and middle barrel.

As shown in figure 12, bucket 102c before the front of middle bucket 102a is provided with.Profile place at preceding bucket 102c and middle bucket 102a is formed with the 3rd bend 102c ' bandy, respect to one another and the 4th bend 102a ', is inserted with seal 251 between therein.

Outer circumference surface along the 3rd bend 102c ' and the 4th bend 102a ' is provided with a clamping device.Bucket 102c and middle bucket 102a before this clamping device connects, and compress seal 251, to prevent the washings seepage.

In this case, clamping device comprises the bend pipe 301 of the outer circumference surface that is used to cover the 3rd bend 102c ' and the 4th bend 102a ', so that compress seal 251.

As shown in figure 12, bend pipe 301 is shorter than the length of the outer circumference surface of bend 102c ' and 102a ', and has the part of the annular of a disconnection.Be provided with a clamping device at gap, be used for bend pipe 301 being applied clamping force at circumferencial direction.

Clamping device comprises a plurality of fixed head 311, a bolt 321 and a nut 331.In this case, a plurality of fixed heads 311 are outstanding from the first and the second portion of the disconnection portion of bend pipe 301 in the direction perpendicular to circumference respectively.

Bolt 321 is inserted in the hole that forms on the fixed head 311, and nut 331 is applied to bend pipe 301 by being connected with bolt 321 with clamping force.In other words, the number of turns that nut 331 is twisted is many more, can strengthen the clamping force of bend pipe 301 more.

As shown in Figure 13, in according to the syndeton in the first embodiment of the present invention, the cross sectional shape of bend pipe 301 is a flute profile, and in this case, the cross sectional shape of seal 251 is "T"-shaped.Therefore, between bend 102c ' and 102a ', insert seal 251, clamp at the place, end of bend then.

At first the seal 251 between between bend 102c ' and the 102a ' and the end of bend 102c ' and 102a ' and bend pipe 301 can prevent the seepage of washings.

Curling forward in the end of the 3rd bend 102c ', curls backward in the end of the 4th bend 102a '.Therefore can prevent the scraping of seal 251 portions of being bent.

Simultaneously, between bend pipe 301, insert bend and seal.Along with the connection of nut 331, the length of bend pipe 301 is elongated.When the length of bend pipe 301 lengthening, height that its cross section is divided and width reduce according to Poisson ratio (Poisson ' s ratio).Along with the shortening of the height of bend pipe 301, bend 102c ' and 102a ' and seal 251 are compacted and fixing.

As shown in figure 14, the cross section of bend pipe 301 is " U " shape, curls forward in the end of the 3rd bend 122c ' and the 4th bend 122a '.

In this case, seal 252 is set to " U " shape along the 3rd bend 122c '.In a side of seal 252, be provided with the extension 252a that extends contact the 4th bend 122a '.Therefore, at first can prevent the seepage of washings, secondly can prevent the seepage of washings at the compression unit of seal 252 and bend pipe 302 at extension 252a.

Foregoing washing machine according to the present invention has the following advantages.

The first, because bear box is fixed on the bucket by four tie-beams, can be dispersed in the vibrations and the weight that produce when rotating at a high speed, can prevent that therefore bucket and bear box are damaged.

The second, because carrying bolt is connected two places, therefore the weight that can disperse washing machine when the transportation of washing machine do not need to install independent auxiliary member.

The 3rd, because the rear surface of bucket is provided with bend to gain in strength, therefore need independent support be set at the tie-beam of bear box and the connecting portion place of bucket.And, because the rear end of the point of bucket in the covering of second bend, thereby can prevent that the workman is scratched when transportation.

The 4th, owing near through hole that bolt is connected with bend and connecting hole, be provided with spigot surface, thereby connecting bolt stably.

The 5th, owing to be provided with bend pipe along the outer circumference surface of the connecting portion of middle bucket and preceding bucket, thereby make assembling very easy, and connection power along the circumferential direction is very even.

Obviously can not break away from the spirit and scope of the present invention in the present invention to those skilled in the art and make various modifications and variations.Therefore, the objective of the invention is to be included in the modifications and variations of this invention in Rights attached thereto and its scope that is equal to.

Claims

1. a tumbling-box washing machine has the bucket that is used to deposit washings, and wherein said bucket comprises:

In bucket, cylindrical for hollow is used for rotatably being provided with cylinder within it;

And

The back bucket comprises base plate, is used for covering the rear side of described bucket; First bend, crooked backward from the profile of described base plate, and with described in the inner surface overlaid of bucket; And second bend, from described first bend to front curve, and with described in the outer circumference surface overlaid of bucket.

2. tumbling-box washing machine according to claim 1, wherein said first bend and described middle bucket are by being welded to connect.

3. tumbling-box washing machine according to claim 1 is wherein processed crooked described second bend to cover an end of described middle bucket by curling.

4. tumbling-box washing machine according to claim 1 is wherein by crooked described first bend of processing and described second bend of curling.

5. tumbling-box washing machine according to claim 1, wherein described first bend and described in the bucket overlapping portion be provided with through hole.

6. tumbling-box washing machine according to claim 5 further comprises bear box, and described bear box comprises:

Wheel hub is arranged on described barrel rear side; And

A plurality of tie-beams have the connecting hole of connecting bolt, and described bolt passes institute

State through hole and be inserted into an end that radially extends from described wheel hub.

7. tumbling-box washing machine according to claim 6, the spigot surface that wherein has a recessed cross section of " V " shape be arranged on described through hole and described connecting hole near, and the bottom of described bolt head and described spigot surface form accordingly.

8. tumbling-box washing machine according to claim 1, wherein said second bend along described first bend and described in bucket extend to predetermined length, described second bend, described first bend and described in barrel the lap place be provided with through hole.

9. tumbling-box washing machine according to claim 8 further comprises bear box, and described bear box comprises:

Wheel hub is arranged on described barrel rear side; And

Tie-beam has the connecting hole of connecting bolt, and described bolt passes described through hole and is inserted into an end that radially extends from described wheel hub.

10. tumbling-box washing machine according to claim 9, the spigot surface that wherein has a recessed cross section of " V " shape be arranged on described through hole and described connecting hole near, and the bottom of described bolt head and described spigot surface form accordingly.

11. tumbling-box washing machine according to claim 1 wherein is provided with the reinforcement of elbow-shaped continuously or discontinuously on the outer circumference surface of bucket in described.

12. a tumbling-box washing machine comprises:

Base plate is shaped as circle;

The back bucket comprises from recurvate first bend of described base plate; And

In bucket, cylindrical for hollow, described in bucket have and the equitant rear side inner peripheral surface of the outer circumference surface of described first bend, and have by curling processing and crooked end, be used to cover the end of described first bend.

13. a tumbling-box washing machine comprises:

Bucket comprises bucket in hollow columniform, so that cylinder rotatably to be set within it; And bend; And back bucket, comprise the bend of the rear end that is used for covering described barrel; And

Bear box comprises the wheel hub of the rear side that is arranged on described bucket and four tie-beams that radially extend and be fixed in the rear side of described bucket from described wheel hub.

14. tumbling-box washing machine according to claim 13, the end of wherein said tie-beam is connected with described bend by using described bolt.

15. tumbling-box washing machine according to claim 13, wherein two described tie-beams are fixed in described wheel hub symmetrically.

16. tumbling-box washing machine according to claim 15, wherein carrying bolt connects with the described tie-beam on the top of being fixed in described bucket.

17. tumbling-box washing machine according to claim 13, the angle between the wherein said tie-beam is identical.

18. tumbling-box washing machine according to claim 13, wherein when the bottom of described bucket be ellipse, the angle that is located at the angle between described two tie-beams on its top between described two tie-beams of its underpart is then inequality.

19. tumbling-box washing machine according to claim 13 wherein is provided with the space of described tie-beam on the rear surface of described bucket, is respectively arranged with a plurality of first reinforcements four parts.

20. tumbling-box washing machine according to claim 19, wherein a plurality of first reinforcements are outstanding backward from described bucket.

21. tumbling-box washing machine according to claim 13, the rear surface of wherein described bucket are provided with a plurality of second reinforcements that press down forward from described bucket, are used to carry described bucket and described tie-beam.

22. tumbling-box washing machine according to claim 13 wherein is provided with the reinforcement of a plurality of elbow-shaped continuously or discontinuously on the outer circumference surface of bucket in described.

23. the manufacture method of a tumbling-box washing machine comprises the steps:

Form columniform middle bucket;

Form the back bucket, described back bucket comprises first bend that forms by the processing of curling on the profile of circular bottom plate;

Insert described back bucket, with rear side inner circumferential surface and the described first bend overlaid with bucket in described;

A side of bucket and described first bend during the seam welding is described; And

Form second bend, be used for covering the end of described bucket by described first bend that curls.

24. the manufacture method of tumbling-box washing machine according to claim 23, wherein said columniform in bucket cylindrical by sheet metal is curled into, and abutment joint carries out butt welding and forms.

25. the manufacture method of tumbling-box washing machine according to claim 23 comprises that also the step of the reinforcement that forms elbow-shaped, described reinforcement are by being installed to it at press device when inboard, forming by pushing roller.

26. the manufacture method of tumbling-box washing machine according to claim 23, also comprise formation pass simultaneously described back bucket described bend and described in the step of through hole of bucket rear end, and pass described through hole by described bolt and be connected to described tie-beam, and described bear box is fixed to described back barrel rear portion.

27. a tumbling-box washing machine comprises the middle bucket of hollow cylindrical, and the preceding bucket that is arranged in described bucket front, described washing machine comprises:

The 3rd bend and the 4th bend, before described bucket and described barrel position respect to one another outwardly-bent;

Seal is arranged between described the 3rd bend and described the 4th bend;

And

Clamping device is along the outer circumference surface setting of described the 3rd bend and described the 4th bend.

28. tumbling-box washing machine according to claim 27, wherein said clamping device are to cover described the 3rd bend and described the 4th bend to compress the bend pipe of described seal.

29. tumbling-box washing machine according to claim 28, wherein said bend pipe is shorter than the length of the excircle of described bend, and is the ring-type that a side has opening.

30. tumbling-box washing machine according to claim 29, wherein said clamping device are arranged on described open loop portion, are used for described bend pipe is applied clamping force at circumferencial direction.

31. tumbling-box washing machine according to claim 30, wherein said clamping device comprises:

A plurality of fixed heads, outstanding in first side and second side of the described open loop portion of described bend pipe perpendicular to circumferencial direction;

Bolt is connected with the through hole that forms on the described fixed head; And

Nut is connected with described bolt, is used to apply power to clamp described bend pipe.

32. tumbling-box washing machine according to claim 28, the cross section of wherein said bend pipe are flute profile.

33. tumbling-box washing machine according to claim 28, the cross sectional shape of wherein said bend pipe are " U " shape.

34. tumbling-box washing machine according to claim 27, the cross sectional shape of wherein said seal are "T"-shaped.

35. tumbling-box washing machine according to claim 27, an end of wherein said the 3rd bend curl forward, and an end of described the 4th bend curls backward.

36. tumbling-box washing machine according to claim 27, an end of wherein said the 3rd bend and an end of described the 4th bend all curl forward.

37. tumbling-box washing machine according to claim 36 wherein is provided with the described seal of " U " shape along described the 3rd bend, and extends from a side of described seal and to be provided with extension, described extension contacts with described the 4th bend.

38. a tumbling-box washing machine comprises the bucket that is used to deposit washings that sets within it, wherein said bucket comprises:

Middle bucket has bandy the 3rd bend in its front side, and is shaped as the cylindrical of hollow;

The back bucket, comprise the base plate that is used for covering described bucket rear side, from recurvate first bend of the profile of described base plate, the inner peripheral surface overlaid of described first bend and described middle bucket rear side, and from prone second bend of described first bend, described second bend is with the outer circumference surface overlaid of bucket in described;

Preceding bucket has four bend relative with described the 3rd bend, and is arranged on the front of described middle bucket;

Seal is arranged between described the 3rd bend and described the 4th bend;